https://BeyondCarat.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
69
GRADE
D
FIX
2
REVIEW
1
PASS
4
INFO
1
Checks
84 PASS 1 REVIEW 2 FIX
FCO2 Per Page LoadAction3.21g CO2 per viewFIX
CO2 Per Page Load
Action3.21g CO2 per view
3.21g CO2 per view
Critical::
3.21g CO2 per page view
This page transfers 13.6 MB, producing an estimated 3.21g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.08g, network 0.66g, end-user device 2.47g.
Got: 3.21g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 385.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 385.2 kg of CO2 annually — equivalent to charging 48150 smartphones.
Info::
Green hosting reduces data center emissions
3.21g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 13.6 MB
Your site
3.21g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.08g
Network
0.66g
End-user device
2.47g
At 10,000 monthly views: Monthly: 32.1 kg · Annual: 385.2 kg · ≈ 48150 smartphone charges
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
3.21g CO2 — above the median website (0.60g)
Heavier than an estimated 5% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 95th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
3.21g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 435% more
vs Target 542% more
BWeb Font Weight Variants5 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
5 font weights loaded across 2 famil(y/ies)
5 font weights loaded across 2 famil(y/ies)
Info::
5 font weights loaded -- review whether all are used
5+ weights for a single page is often more than needed. Compare against the actual font-weight CSS rules in your stylesheets; trim weights that aren't applied to any element. Affected families: Rubik, Work Sans.
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Snowplow Analytics, CDN: Cloudflare
Info::
Snowplow Analytics: Verified by the Green Web Foundation
Info::
Cloudflare: 100% renewable energy for global network since 2019
Info::
Green hosting status based on known provider commitments
Green hosting detection uses a curated database of provider renewable energy commitments. This is not a real-time verification. For authoritative checks, visit thegreenwebfoundation.org.
Green Hosting✓ Green Hosted
Hosting Snowplow Analytics✓CDN Cloudflare✓
Snowplow Analytics: Verified by the Green Web Foundation
Cloudflare: 100% renewable energy for global network since 2019
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 151 KB (vs 13887 KB first visit). 358 of 363 resources are served from browser cache, saving 3.18g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 3.21g)
First visit
13887 KB
Repeat visit
151 KB
99% reduction on repeat visits
Saving 3.18g CO2 per returning visitor
358 resources served from cache · 5 resources re-downloaded
A+Transfer Efficiency97% efficientPASS
Transfer Efficiency
97% efficient
97% efficient
Info::
Transfer efficiency: 97%
Only 365 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 365 KB (3% of page weight)
Unused JS 365 KB
0.08g unnecessary CO2 per visit
Actual transfer 13887 KB
Theoretical minimum 13522 KB
Potential savings 365 KB (0.08g CO2)
See Deep Analysis sections above for specific optimizations.
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Image Optimization70 images, 398 KB total, 98 KB wastedINFO
Image Optimization
70 images, 398 KB total, 98 KB wasted
Image Optimization Audit
Total Images
70
Total Size
398 KB
Oversized
2
Wasted
98 KB
4 missing alt text 2 missing dimensions 38 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.